/* Hallmark · tokens · theme: River Ink (custom-tuned editorial palette)
 * paper: oklch(97% 0.008 231) · accent: oklch(45% 0.16 231) · display: Fraunces · body: IBM Plex Sans
 * Portable design tokens for donaustudio-landingpage.html — reference by var(), never inline.
 */
:root {
  /* ---------- Colour — OKLCH, anchor hue 231 (river-blue) ---------- */
  --color-paper:        oklch(97% 0.008 231);
  --color-paper-2:       oklch(94% 0.010 231);
  --color-rule:          oklch(85% 0.012 231);
  --color-rule-2:        oklch(76% 0.014 231);
  --color-neutral:       oklch(62% 0.016 231);
  --color-muted:         oklch(46% 0.018 231);
  --color-ink-2:         oklch(32% 0.020 231);
  --color-ink:           oklch(20% 0.020 231);

  --color-accent:        oklch(45% 0.16  231);
  --color-accent-ink:    oklch(98% 0.006 231);
  --color-accent-on-dark: oklch(68% 0.13 231);
  --color-focus:         oklch(45% 0.16  231);

  /* ---------- Typography — 2+1 pairing ---------- */
  --font-display: "Fraunces", ui-serif, Georgia, serif;
  --font-body:    "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-outlier: "JetBrains Mono", ui-monospace, monospace;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.375rem;
  --text-xl:   1.75rem;
  --text-2xl:  2.25rem;
  --text-3xl:  2.75rem;
  --text-display-s: clamp(2.1rem, 3.4vw + 1rem, 3.15rem);
  --text-display:   clamp(2.75rem, 5vw + 1rem, 5.25rem);

  /* ---------- Spacing — 4pt scale ---------- */
  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  /* ---------- Motion ---------- */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long:  420ms;

  /* ---------- Radius / rails ---------- */
  --radius-sm: 2px;
  --radius-md: 4px;
  --rail-w: 4.5rem;

  /* ---------- Z-index scale ---------- */
  --z-base: 1;
  --z-raised: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 400;
  --z-toast: 500;
  --z-tooltip: 600;
}